Spoolable flexible hydraulically set, straight pull release well packer

Abstract

A coiled tubing completion system is provided with a plurality of completion apparatus, all of which is designed flush with the diameter of the coiled tubing outside diameter for avoiding upsets and are flexible, spoolable on a coiled tubing reel and having through bores large enough to pass wireline tools for performing other operations. The spoolable coiled tubing system may use standard coiled tubing well control equipment and can be used in live wells. The flush, flexible, spoolable and through bore completion equipment may include a tubing retrievable safety valve, an annular control valve, concentric gas lift valves, a zone packer, a landing nipple, a sliding sleeve, and may include at the end a non-flexible but flush and open bore production packer and pump out plug. The completion system may be retrieved through a retrieval system.

What is claimed is: 
     
       1. A spoolable flexible hydraulically set, straight pull release well packer positioned in a coiled tubing comprising, a mandrel having a bore therethrough for the passage of wireline tools,   an expandable packer seal positioned about the mandrel,   expandable slip means positioned about the mandrel,   said packer seal and said slip means being initially retracted to an outer dimension substantially equal to the outside diameter of the coiled tubing,   hydraulic piston and cylinder actuating means positioned outside the mandrel and between the packer seal and the slip means for setting the slip means and the packer seal,   said well packer being longitudinally flexible for allowing bending about the longitudinal axis of the well packer for allowing the packer to be spooled on a coiled tubing reel.   
     
     
       2. The well packer of claim 1 wherein the piston and cylinder actuating means is longitudinally flexible. 
     
     
       3. The well packer of claim 2 including, a breakable protective coating initially positioned around the packer seal and the slip means.